How To Clean Cast Iron Bathtub Stains. Why the tub turns white again: squeeze lemon juice onto the stain and sprinkle salt on it.
Pour vinegar onto your sponge and in the sink. oxidized iron is rust, hence the rusty red color. Clean your tub with dish soap and bicarbonate of soda.
Be Green How To Remove Ugly Rust Stains From Cast Iron Bathtubs
For tub rings and hard water stains, use white vinegar. Why the tub turns white again: Pour vinegar onto your sponge and in the sink. The easiest way to remove this tub is to destroy it, so we tell keith.